The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 2016
Filed:
Mar. 08, 2012
Federico Santiago Cattivelli, Newport Beach, CA (US);
David Amory Sobel, Los Altos, CA (US);
John S. Walley, Ladera Ranch, CA (US);
Satish Vithal Joshi, Cupertino, CA (US);
Federico Santiago Cattivelli, Newport Beach, CA (US);
David Amory Sobel, Los Altos, CA (US);
John S. Walley, Ladera Ranch, CA (US);
Satish Vithal Joshi, Cupertino, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Adaptive reconfiguration of a capacitive touch controller is implemented by estimating the interference spectrum of the signal received by the touch controller. The spectrum of the received signal is used to determine a desired frequency, and the touch panel transmitter is configured to use that desired frequency. The spectrum of the received signal is also used to determine an desired filter transfer function. A filter in the touch panel received signal path is configured to use that desired filter transfer function. The adaptive reconfiguration is focused on improving the signal to noise ratio of the received signal without the need for shielding the touch panel, performing additional scans of the touch panel, or using components that operate at higher power levels.